Will another player ever win again win more than 160 matches and lose less than 10 matches in two consecutive seasons? Federer, of course, did it. Going 173-9 between 2005-2006. Djokovic could have done it this year. If he had won 90 matches and lost 3 matches. (He is currently 70-11) Nadal has always lost at least 10 matches in a season, except this year (currently 42-6). If he went 119-3 next year, he would do it. Lendl came close in 1985-1986 going 158-13. McEnroe came close in 1984-1985 going 153-12. Connors came close in 1974-1975 going 172-12. Borg came close in 1977-1980 (can not find any reliable win-loss records from those years, but he was above 90% winning percentage all four years).